xCloud Docker Deploy

Adapt any docker-compose.yml to work with xCloud — a git-push Docker deployment platform.

How xCloud Works

git push → xCloud runs: docker-compose pull && docker-compose up -d

xCloud never runs docker build. Images must be pre-built in a public registry. SSL, reverse proxy, and domain routing are handled by xCloud — your stack must not duplicate them.

Read references/xcloud-constraints.md for the full ruleset before making changes.

Phase 0 — Detect Project Type First

Before anything else, scan the project directory for these files:

Read DETECT.md for full detection rules. Quick routing:

See references/xcloud-deploy-paths.md for the Native vs Docker decision guide.

Step 1 — Detect Which Scenarios Apply

Inspect the provided docker-compose.yml:

A compose file can trigger multiple scenarios simultaneously (handle A first, then B).

Scenario A — Build-from-Source

Read references/scenario-build-source.md for full details.

What to do:

1. Remove build: directive from compose
2. Replace image: with ghcr.io/OWNER/REPO:latest
3. Generate .github/workflows/docker-build.yml using assets/github-actions-build.yml template
4. Generate .env.example from all ${VAR} references

Deliverables:

• Modified docker-compose.yml
• .github/workflows/docker-build.yml
• .env.example
• xCloud Deploy Steps (see Output Format)

Scenario B — Proxy Conflict / Multi-Port / External Config

Read references/scenario-proxy-conflict.md for full details.

What to do:

1. Remove Caddy/Traefik/nginx-proxy service entirely
2. Remove SSL labels and multi-port ports: from app services (replace with expose:)
3. Add nginx-router service with inline config via configs: block
4. Expose single port (default: 3080) for xCloud to proxy

Deliverables:

• Modified docker-compose.yml with nginx-router + configs: block
• .env.example
• xCloud Deploy Steps

Scenario C — Multi-Service Build

Read references/scenario-multi-service-build.md for full details.

When multiple services have build: directives (separate frontend + backend + worker):

What to do:

1. For each service with build:, create a separate GHCR image path
2. Generate a matrix GitHub Actions workflow that builds all images in parallel
3. Update compose to use all GHCR image references

Deliverables:

• Modified docker-compose.yml (all build: removed)
• .github/workflows/docker-build.yml (matrix strategy)
• .env.example

Output Format

Always produce complete, copy-paste-ready output:

## Modified docker-compose.yml
[full file]

## .github/workflows/docker-build.yml  (Scenario A/C only)
[full file]

## .env.example
[full file]

## xCloud Deploy Steps
1. Push repo to GitHub
2. (Scenario A/C) Wait for GitHub Actions to build image — check Actions tab
3. Server → New Site → Custom Docker → connect repo
4. Exposed port: [PORT]
5. Env vars to add: [list from .env.example]
6. Deploy

Rules

• Never include build: in the final compose — xCloud silently ignores it
• Never expose database ports to host (remove "5432:5432" — use expose: internally)
• Never include Caddy, Traefik, nginx-proxy, or Let's Encrypt config
• Always preserve environment:, volumes:, healthcheck:, worker/sidecar services
• Always use expose: (internal) not ports: (host) for services behind nginx-router
• WebSockets? Add upgrade headers to nginx config (see proxy-conflict reference)
• configs.content: inline syntax requires Docker Compose v2.23+ — use heredoc command: alternative if uncertain

Examples

See examples/ for ready-made transformations:

• examples/rybbit-analytics.md — Caddy + multi-port app (Scenario B)
• examples/custom-app-dockerfile.md — build-from-source (Scenario A)
• examples/fullstack-monorepo.md — multi-service build (Scenario C)